For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of deferred tax liability attributable to taxable temporary differences.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Noncurrent deferred income tax liabilities	$ 591		$ 591
Effective income tax rate	30.30%	34.80%	34.00%	35.70%
Scenario Previously Reported [Member]
Segment Reporting Information [Line Items]
Current deferred income tax assets					8,859
Noncurrent deferred income tax liabilities					$ 8,526
Sales [Member] \| Unaffiliated Castings [Member]
Segment Reporting Information [Line Items]
Percentage of sales			1.00%
Sales [Member] \| Firearms [Member]
Segment Reporting Information [Line Items]
Percentage of sales			99.00%
Sales [Member] \| Non-US [Member]
Segment Reporting Information [Line Items]
Percentage of sales			5.00%
Accounting Standards Update 2016-09 [Member]
Segment Reporting Information [Line Items]
Effective income tax rate			2.00%